2646122863 has 4 divisors (see below), whose sum is σ = 2707660648. Its totient is φ = 2584585080.

The previous prime is 2646122827. The next prime is 2646122867. The reversal of 2646122863 is 3682216462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2646122863 - 2¹³ = 2646114671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646122867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30768828 + ... + 30768913.

It is an arithmetic number, because the mean of its divisors is an integer number (676915162).

Almost surely, 2^2646122863 is an apocalyptic number.

2646122863 is a deficient number, since it is larger than the sum of its proper divisors (61537785).

2646122863 is an equidigital number, since it uses as much as digits as its factorization.

2646122863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61537784.

The product of its digits is 165888, while the sum is 40.

The square root of 2646122863 is about 51440.4788371959. The cubic root of 2646122863 is about 1383.1522951484.

The spelling of 2646122863 in words is "two billion, six hundred forty-six million, one hundred twenty-two thousand, eight hundred sixty-three".